Advancing UK Aerospace, Defence, Security & Space Solutions Worldwide
  • Home
  • /
  • Defence
  • /
  • Sonardyne International appoints Graham Brown as Managing Director

Defence Security

Sonardyne International appoints Graham Brown as Managing Director

Marine technology provider Sonardyne International Ltd. has announced Graham Brown as its new Managing Director.

Above: Leading marine technology provider Sonardyne International Ltd. has announced Graham Brown as its new Managing Director.
Courtesy Sonardyne International

Graham, who takes over the role from John Ramsden on 1st April, has served on Sonardyne International’s board from 2008, most recently as Sales and Marketing Director and Deputy Managing Director.

Advertisement
ODU RT

John, who has been Sonardyne International’s Managing Director since 2009, is staying within the Sonardyne family, taking the role of CEO of Sonardyne Group, the newly formed parent company of Sonardyne International and its sister companies; Chelsea Technologies, EIVA, Wavefront and 2G Robotics.

“This is an exciting time for Sonardyne International,” says Graham. “Looking beyond the current, uniquely challenging business climate, we’ll continue to grow organically, in terms of our people, our technology offering and the global markets which we support - while upholding the service and support that we’re renowned for. But we’re now part of a wider group of companies, with access to a considerably enlarged portfolio of products and services that complement our own seabed-to-shore systems. We expect this to deliver significant operational benefits for our customers across the global energy, ocean science, civil and defence markets.”

“Next year will be Sonardyne’s 50th year in business and I’m proud to have played a significant role in the success of the company over the last two decades,” says John. “As we look forward to celebrating that half century milestone with Graham at the helm, our collective sights are focussed on the direction we’re headed in at the start of our second half century. As CEO of Sonardyne Group, I’m excited at the prospect of working with Graham and his counterparts across our business to support those who measure, navigate, communicate or explore the world’s waters and oceans, safely, responsibly and more efficiently than ever before.”

Advertisement
ODU RT

Graham is an Electromechanical Engineer by background with a first-class degree and Ph.D. He is also a Chartered Engineer, a Fellow of the Institute of Directors (IoD), a Fellow of the Institute of Marine Engineering Science and Technology (IMarEST), and a member of the Society for Underwater Technology (SUT). He contributes to a number of industry groups such as the Southern Region Council of the Energy Industries Council (EIC).

 

Advertisement
FIA2026 animated banner
Spectra Group receives first MoD order for GENSS

Defence

Spectra Group receives first MoD order for GENSS

20 May 2026

Spectra Group (UK) Ltd has received its first order from the UK Ministry of Defence (MoD) for the recently launched GENSS tactical communications system as a defence unicorn.

Serco awarded £65m US Army mission support contract

Defence

Serco awarded £65m US Army mission support contract

20 May 2026

Serco has been awarded a five-year contract by the US Army worth more than £65 million ($90 million) to support the Planning Programming Budgeting Business Operating System (PPB BOS).

Austability Group acquires majority stake in Nine23

Defence Security

Austability Group acquires majority stake in Nine23

20 May 2026

Austability Group Ltd, which provides expeditionary operational support services for the defence and national security sector, has acquired a majority shareholding (80%) in Nine23 Ltd, one of the UK’s high-assurance managed service providers.

Navantia UK debuts autonomous vessel design

Defence Events

Navantia UK debuts autonomous vessel design

19 May 2026

At the Combined Naval Event in Farnborough today, Navantia UK unveiled its large autonomous surface vessel - LASV75 - as an example of the hi-tech capabilities of its four yards, which are undergoing large-scale modernisation.

Advertisement
ODU RT
QinetiQ to test British Army’s remote-controlled artillery systems

Defence

QinetiQ to test British Army’s remote-controlled artillery systems

19 May 2026

QinetiQ has been awarded a contract from the National Armaments Director (NAD) Group to put the British Army’s newly contracted Remote Controlled Howitzer 155 (RCH155) next generation artillery system through rigorous tests to ensure it is safe to use on operations.

Hexagon releases NCSIMUL upgrade

Aerospace Defence

Hexagon releases NCSIMUL upgrade

19 May 2026

Hexagon’s Production Software Division has announced the latest release of NCSIMUL, strengthening its integrated approach to NC programme verification, simulation and optimisation with a new Selective Simulation capability.

Advertisement
ODU RT
Advertisement
Hexagon leaderboard